TINTIN9113IN TINTIN9113IN Math Answered Write YES if the ratios form a proportion and NO if it does not.______1. 2: 5 = 4: 10______2. 4: 16 = 25: 100______3. 3: 5 = 4: 8______4. 12: 21 = 4: 7______5. 10: 6 = 3: 5